Gravity Roller
Gravity roller pallet conveyors are a type of unpowered conveyor.
As such manual force or gravity is required to push the pallets over the rollers. Gravity pallet conveyors have heavy-duty rollers mounted within a frame which sits off the floor.
Alternatively, floor-level roller tracks can be installed as shown below.
It is important to have some sort of braking control so that pallets can be stopped at any point for safety purposes.